CaïnvsclairConfusable pair

Quick tell: Caïn is a name, clair is an adjective, so they fill different roles in a sentence.

Which to use

“Caïn” is a name and “clair” is an adjective - they look or sound alike but fill different roles in a sentence.

#34,923
“Caïn” frequency rank
#1,086
“clair” frequency rank
36009
confusion score

Side-by-Side Comparison

Feature Caïn clair
Definition Premier fils d’Adam et Ève dans la Bible, connu pour avoir tué son frère cadet Abel. Qui a l’éclat du jour, de la lumière.

Where the eye mixes Caïn and clair

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
Caïn
5 ch
clair

Visual trap between Caïn and clair

These two trip readers on the page rather than in the ear: Caïn is \ka.ɛ̃\ while clair is \klɛʁ\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 36009, derived from the frequency rank of both members and their visual similarity.

Caïn is recorded at frequency rank #34,923, classified as aname, pronounced \ka.ɛ̃\. clair is at rank #1,086, tagged as anadj, pronounced \klɛʁ\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 36009, this pair ranks #272,642 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Caïn vs clair

Shared letters: ac. Private to "Caïn": . Private to "clair": ilr.

"Caïn" · 4 letters · shape CVCC  ·  "clair" · 5 letters · shape CCVVC

Known mistypes of this pair

  • claircalir · cclair · clairr · clari · cliar · cllair · lcair

Frequently Asked Questions

Is swapping "Caïn" for "clair" ever safe?
No - they are not even the same part of speech. "Caïn" is a name and "clair" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Caïn" vs "clair" - which ranks higher?
"clair" is the more common of the two: it sits at frequency rank #1,086 in our French list, against #34,923 for "Caïn". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Caïn" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "clair" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #272,642 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Caïn" and "clair" also get mixed up with nearby pairs, the highest-scored neighbour is "Caïn vs coon". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #272,642 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list